Stopping mechanism for phonographs.



W1 A. LUCKER.-

STOPPING MECHANISM FOR PHONOGRAPHS.

APPLICATION FILED JULY 22.1915- Patented Feb. 6, 1917.

muses and useful Improvements WILLIAM A. LUCKER, OF ST- PAUL, MINNESOTA.

STOPPING MECHANISM rose PHONOGRAPI-IS.

Specification of Letters Patent.

Patented Feb. 6, 1917.

Application filed July 22, 1915. Serial No. 41,401.

To all whom it may concern:

Be it known that I, VVILLIAM A. LUCKER, a citizen ofthe United States residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new Mechanism for Phonographs.

This invention has for its object the automatic shutting off of the brake member of a phonograph, and provides means whereby the brake member may be operated as soon as a record has been finished, whether that 1 record be long or short.

With this and incidentalobjects in view the 1I1Vent1OI1' COI1S1StS of certain novel features of construction and combination of parts, the essential elements of which are 'the stem and screw illustrating the method of clamping the cover plate and dial together. Fig. 5 is an enlarged plan view of the cover plate showing, i-n-dotted lines, the numerals on the dial below the cover plate,

and leaving the numeral 2 exposed through an aperture in the cover plate.

My preferred form of construction as illustrated in the drawing is applied to a phonograph of conventional construction, comprising a square caslng wherein 1s I mounted the actuating mechanism of the medium of which the reproducing mechamachine, a rotatable record support 4 being provided at the upper slde of the caslng. A starting lever 1 isv shown, through the nism is released for operation, as will be understood by those skilled in the art.

, A brake integral with or'carried by the lever 1 is adapted to stop the sound reproducing mechanism after the rendition of 'a record when freed from the latch 2. The brake member in the operation of the machine, at the present time, is automatically actuated by means of an arm such as in Stopping 7, which is fixed to an oscillatory post 6,

the latterbeing directly connected with the sound box or stylus of the machine so that as the sound box or stylus traverses the record. the free end of this arm is graduallv moved toward the latch 2, contactihg therewith so as-to cause the stopping of the machine when the needle ofthe sound box or stylus has reached the end of the record.

Inasmuch as all records are not of the same length, it is evident that if this arm is so pos1t1oned wlth respect to the operating mechanism that it will cause the stopping of he machine when a long record has been completed, in the case of a short record itwill allow the mechanism to run a considerable length of-time after the record is completed and thus allow the sound reproducagreeable sound.

I apply as an actuating arm a simple at-,

tachment that can readily and easily be applied to all machines of proper design, either at the factory, or after the machine has al; ready been put to use. This attachment comprises an arm 7,,Fig. 2, adapted to register with and be driven by the post 6, and which is cut away to fit the milled end of shaft 6 as at 8, and carries a stem 9, Fig. 3, rigidly attached at right angles thereto.

Journaled upon the stem 9 is a dial 10 with a'pinion 11 out at the extended' 'end thereof, the dial being recessed as better shown in Fig. i y

The upper end. of the stem 9 is squared and carries rigidly attached thereto by means of the screw 12 a spring cover plate 13, which registers with the recessed portion of thedial .10. The cover plate has a circularslot 21, Fig. 5, cut therein extending about 300 degrees in order to give spring tension on the pin 14, so that it may register with the depressions 15 Figs. 1 and 5, in the dial 10.

Spaced annularlyto correspond with the 1ng means to give out -a grating and dis depressions 15 is a series of numbers adapted to correspond with records of various lengths, 'and the cover plate 13 is provided with an aperture 1t}, so that a number will be displayed when the pin 14 registers with the corresponding one of the depressions 15.

Coacting with the pinion llis a section of an internal gear 17, better shown in Fig. 2.

It is evident. that by turning the dial 10,

the pinion l1 meshing with the sector 17,

will slide the sector in the guide '18, whichis rigidly attached to the arm 7, and the depressions 15 registering-with the pin It will tend to prevent lateral movement of the sector '17. As the sector 17 is concentric with the axis of the post 6, and as this post ap proache's the latch during actuation of the machine, it is evident that the actuating end of the sector will always impinge on the latch-2 at the same point, and at adirection at 90' degrees with the surface of the contact. It is also evident that the time at which the brake actuating lever 2 will be operated by the movement of the post 6 will depend on the position of the sector 17, which in turn depends upon the setting of the dial 10. This attachment therefore pro vides means for shutting off the actuating mechanism at any desired point, and the preferred method of operation is to first play each record through and shut off by hand the brake lever 2 as soon as the record is completed. Then by turning the dial. 10 so as to move the actuating end of the sector 17 up against the lever 2 in its shut-oft position, determine the number shown on the dial and mark that particular record with this number so that whenever it is played again, the dial may be set to that number and the mechanism will be automatically shut off as soon as the record has been completed.

\Vhile I have described my invention and illustrated it in one particular design, I do not wish it understood that I limit myself to this construction, as the application of my invention may be varied in many ways within the scope of the following claims.

Claims: I

1. The combination in aphonogra-phof 'a rotating member, a brake member for "cooperation with 'said rotating member, a latch, an actuating member adapted for automatic movement into engagement with said latchto actuate the same, a movable impinging member carried by said actuating member, a dial member controlling the position. of said" impinging member. and a spring cover plate for the dial having an aperture therein. and a detent pin to position said impinging member.

2. The combination in a phonograph of a rotating member, a brake member .for co operation with saidrotating member, a latch, an actuating member adapted for automatic movement into engagement with said latch to actuate the same, a sector of an internal gear slidably mounted in said actuating member, so as to be movable therein along a circle of the same radius as said sector, a stem fixed in said actuating arm at right angles thereto, a dial member having an extended end carrying a pinion journaled on said stem, said pinion meshing with said sector, a spring cover platfiXed on said stem and covering the dial,

except for an aperture in said cover plate, and a detent p n 1n sald spring cover plate registering with depressions in said dial for.

locating said dial with respect to the aperture in said cover plate.

WILLIAM A. LUCKER. 

